<html>
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<title>HelloWorld</title>
<header></header>

<body>
    <div id="identify">
        <ul>
            <li v-for="value in arr">{{value}}</li>
            <li v-for="value in user">{{value.name}}:{{value.age}}</li>
            <li v-for="(v,k) in user " :key="k">{{k}}:{{v}}</li>
        </ul>
    </div>
    <script>
        window.onload = function () {
            var app = new Vue({
                el: '#identify',
                data: {
                    arr: [1, 2, 4, 5, 6],
                    user: [{ name: "jerry", age: 16 }]
                }
            })
        }

    </script>
</body>

</html>